25 Oct, 2016

1 commit

• 6a8de3aef   crypto: acomp - add support for 842 via scomp ... Browse Code »

  Add scomp backend for 842 compression algorithm.

  Signed-off-by: Giovanni Cabiddu
  Signed-off-by: Herbert Xu

  Giovanni Cabiddu

  2016-10-25 11:08:33 +0800  

11 May, 2015

1 commit

• 2062c5b6d   crypto: 842 - change 842 alg to use software ... Browse Code »

  Change the crypto 842 compression alg to use the software 842 compression
  and decompression library. Add the crypto driver_name as "842-generic".
  Remove the fallback to LZO compression.

  Previously, this crypto compression alg attemped 842 compression using
  PowerPC hardware, and fell back to LZO compression and decompression if
  the 842 PowerPC hardware was unavailable or failed. This should not
  fall back to any other compression method, however; users of this crypto
  compression alg can fallback if desired, and transparent fallback tricks
  callers into thinking they are getting 842 compression when they actually
  get LZO compression - the failure of the 842 hardware should not be
  transparent to the caller.

  The crypto compression alg for a hardware device also should not be located
  in crypto/ so this is now a software-only implementation that uses the 842
  software compression/decompression library.

  Signed-off-by: Dan Streetman
  Signed-off-by: Herbert Xu

  Dan Streetman

  2015-05-11 15:06:43 +0800  

24 Nov, 2014

1 commit

• 5d26a105b   crypto: prefix module autoloading with "crypto-" ... Browse Code »

  This prefixes all crypto module loading with "crypto-" so we never run
  the risk of exposing module auto-loading to userspace via a crypto API,
  as demonstrated by Mathias Krause:

  https://lkml.org/lkml/2013/3/4/70

  Signed-off-by: Kees Cook
  Signed-off-by: Herbert Xu

  Kees Cook

  2014-11-24 22:43:57 +0800  

07 Sep, 2012

1 commit

• c2b3711d1   crypto: 842 - remove .cra_list initialization ... Browse Code »

  .cra_list initialization is unneeded and have been removed from all other
  crypto modules except 842.

  Cc: Robert Jennings
  Signed-off-by: Jussi Kivilinna
  Acked-by: Seth Jennings
  Signed-off-by: Herbert Xu

  Jussi Kivilinna

  2012-09-07 04:17:06 +0800  

01 Aug, 2012

1 commit

• 35a1fc187   powerpc/crypto: add 842 crypto driver ... Browse Code »

  This patch add the 842 cryptographic API driver that
  submits compression requests to the 842 hardware compression
  accelerator driver (nx-compress).

  If the hardware accelerator goes offline for any reason
  (dynamic disable, migration, etc...), this driver will use LZO
  as a software failover for all future compression requests.
  For decompression requests, the 842 hardware driver contains
  a software implementation of the 842 decompressor to support
  the decompression of data that was compressed before the accelerator
  went offline.

  Signed-off-by: Robert Jennings
  Signed-off-by: Seth Jennings
  Signed-off-by: Herbert Xu

  Seth Jennings

  2012-08-01 17:47:56 +0800